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Viscous limitation of large-amplitude pulses in two-component plasmas
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Rowlands, G. (George) and Infeld, E. (Eryk). (2008) Viscous limitation of large-amplitude pulses in two-component plasmas. EPL, Volume 83 (Number 1). ISSN 0295-5075
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Official URL: http://dx.doi.org/10.1209/0295-5075/83/15004
Abstract
Some time ago, we found an exact solution for nonlinear cold-plasma oscillations against a periodic ion background. The main and somewhat surprising physical effect due to the fixed ion background was the appearance of unbounded-electron density and electric-field intensity peaks. Along with others, we then tried to understand this in terms of realistic physical situations. Here we present a calculation indicating that these infinities can be removed by inclusion of viscous effects. A discussion of possible regions of validity of the model is given. For removal of infinities, the viscosity must be larger than a critical value depending on both the amplitude and spacing of the periodic ion background. Lagrangian coordinates are crucial in this calculation. Copyright (c) EPLA, 2008.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science > Physics |
| Library of Congress Subject Headings (LCSH): | Plasma (Ionized gases), Plasma dynamics, Viscosity, Nonlinear oscillations |
| Journal or Publication Title: | EPL |
| Publisher: | EDP SCIENCES S A |
| ISSN: | 0295-5075 |
| Official Date: | 2008 |
| Volume: | Volume 83 |
| Number: | Number 1 |
| Number of Pages: | 3 |
| Identification Number: | 10.1209/0295-5075/83/15004 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| References: | [1] Mozer F. S. et al., Space Sci. Rev., 27 (1980) 155; |
| URI: | http://wrap.warwick.ac.uk/id/eprint/29449 |
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